Sound source not working, I hear it's trying to initialize on startup, but light on device stay off and Doom hang with weird sound from PC speaker on first key press in menu and crash.

With Prince of Persia red light on device on after game start and works fine on LPT1.

DSS support works on my reverse engineered circuit. Just keep in mind that it doesn't support the "power on/off" signal and is basically always active. Remains silent when changing to Covox mode on startup.
@MAZter: There's a debug command you can issue to force power up of the DSS, maybe give it a shot and check if it works then? Maybe the power up signal isn't issued by FDoom. Page1 of the "programmer's guide" describes how to do it see: https://archive.org/details/dss-programmers-guide/mode/2up (I'm not a programmer so I don't know how exactly one would ideally do that).

GUS support also seems to work again (tested with an ARGUS RC1)

MAZter wrote on 2020-10-09, 01:16:

Sound source not working, I hear it's trying to initialize on startup, but light on device stay off and Doom hang with weird sound from PC speaker on first key press in menu and crash.

With Prince of Persia red light on device on after game start and works fine on LPT1.

What is your pc hardware and what LPT port are you using @MAZter? The auto-initialization code isn't modified and it's the same that uses ROTT and Duke Nukem 3D, so it's weird it isn't able to startup the DSS.

BTW forgot to mention that Covox Speech Thing and LPT DAC devices aren't supported right now, but will be in the future (when I get one in hand).

Thanks for testing and providing support 😁

ViTi95 wrote on 2020-10-09, 12:01:

What is your pc hardware and what LPT port are you using @MAZter?

Nec Versa V/50 notebook with only one available LPT - 1, later I will try with different laptop.